PenciDesign Supporter replied
Hi,
Please follow these steps:
1. Install & activate the Admin CSS MU plugin here: https://wordpress.org/plugins/admin-css-mu/,
2. Go to Appearance → Admin CSS MU: copy & paste the following CSS code to this screen:
#wpbody .wp-block,
#wpbody .editor-styles-wrapper,
#wpbody .wp-block p,
#wpbody .editor-styles-wrapper p.wp-block-paragraph,
#wpbody .editor-styles-wrapper p.block-library-list,
#wpbody .editor-styles-wrapper .mce-content-body p {
font-size: 18px;
}
Change 18px to the font size you want to show.
Regards,
PenciDesign.